package br.com.transitojp.filters;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import br.com.transitojp.model.User;

public class FilterLogin implements Filter {

	FilterConfig fConfig;
	public void init(FilterConfig fConfig) throws ServletException {
		this.fConfig = fConfig;
	}

	public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {

		HttpServletRequest req = (HttpServletRequest) request;
		HttpServletResponse resp = (HttpServletResponse)response;

		User userLogado = (User)req.getSession().getAttribute("user");

		if (userLogado == null) {  
			request.getRequestDispatcher("login.jsf").forward(req, resp);
		}
		chain.doFilter(request, response);
	}

	public void destroy() {
		this.fConfig = null;
	}

}
